body {
    font-family: 'Arial', sans-serif; 
    background-color: #f4f6f9; 
}

.layui-card {
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    border-radius: 8px; 
    margin-bottom: 20px;
}

.layui-card-header {
    font-weight: 600; 
    background-color: #fff;
    border-bottom: 1px solid #eee;
    padding: 15px 20px;
    border-radius: 8px 8px 0 0;
    color: #333; 
}

.layui-card-body {
    padding: 20px;
}
.layui-form-label {
    font-weight: 500; 
    color: #555; 
}

.layui-input,
.layui-select {
    border-radius: 6px;
}

.layui-btn-normal {
    background-color: #009688; 
    color: #fff;
}

.layui-btn-normal:hover {
    background-color: #00776b; 
}

.qr-code-container {
    text-align: center;
}

.qr-code-container img {
    border: 1px solid #ddd;
    padding: 5px;
    border-radius: 6px;
    margin-bottom: 10px;
}

.qr-code-container p {
    margin-bottom: 15px;
    color: #777;
}

#code_url {
    margin-bottom: 15px;
    border: 1px solid #ddd;
    border-radius: 6px;
    padding: 8px 12px;
    color: #555;
}

@media (max-width: 768px) {
    .layui-col-md6 {
        width: 100%; 
    }
}
.save-button-wrapper {
    text-align: right;
}
.qr-code-container a {
    display: inline-block;
    margin: 0 5px;
    transition: transform 0.2s ease-in-out;
}

.qr-code-container a:hover {
    transform: scale(1.2);
}
.hide {
    display: none!important;
}